Home / 2,756.46-4,108.40-2,600.79

Finding the Fourth Proportional to 2,756.46, 4,108.40 and 2,600.79

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Solution

The fourth proportional to 2,756.46, 4,108.40 and 2,600.79 is: 3,876.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,756.46 : 4,108.40 = 2,600.79 : x
  2. Step 2: Convert to fraction form
    2,756.46/4,108.40 = 2,600.79/x
  3. Step 3: Cross multiply
    2,756.46x = 4,108.40 × 2,600.79
  4. Step 4: Simplify right side
    2,756.46x = 10,685,085.64
  5. Step 5: Solve for x
    x = 10,685,085.64/2,756.46
  6. Step 6: Final answer
    x = 3,876.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.